Combination gas and oil burner



' .lune 18, 1940. J. s. zlNK COMBINATION GAS AND UIL` BURNER Filed Oct.14, 1958 5 Sheets-Sheet 1 O3 b.. NOI

N ww www@ June 18, 1940. -J s zlNK 2,204,719

, COMBINATION (rAS AND OIL BURNR l I Filed Oct. 14,-1938 5 Sheets- Sheet2 June 18, 1940. J. s. zlNK 2,204,719

COMBINATION GAS AND OIL BURNER Filed Oct. 14, 1938 3 Sheets-Sheet 3Patented June 18, 1940 UNITED STATES PATENT oi-FlcE 2,204,119 coMmNA'noNGas AND on. summa John s. zink, Tulsa, om.

Application October 14,

4 Claiml.

This invention relates to improvements in burners and more particularlyto a combination oil and gas burner capable of burning various types ofgases without adjustment.

One of the objects of the invention is to provide a sectional burner topermit a plurality of gaseous fuels of different types to besimultaneously burned with the same burner structure.

Another object is to provide a sectional burner which will allow onesection to be shut ofi.' in the event that the furnace becomesoverheated.

Another object is to provide a burner which may be used forsimultaneously burning oil and different types of gases or which mayburn a plurality of types of different gases when the oil is shut off. p

A further object is to supply a burner capable of burning all types ofrefinery gases without adjustment of the burner. It is designed toaccommodate either natural or forced draft used with cold or preheatedair;

An additional object is to furnish a combination oil and gas burner inwhich the gas burner is of sectional construction and so designed as toallow the oil burner to be adjusted relatively thereto whereby the headof the oil burner may be moved toward or away from the gas burner sothat the secondary air can be properly admitted to the oil flame.

With the foregoing objects outlined and with other objects in view whichwill appear as the description proceeds, the invention consists in thenovel features hereinafter described in detail.

illustrated in the accompanying drawings, and more particularly pointedout in the appended claims. r

` In the drawings:

Fig. 1 is a horizontal sectional view oi' my improved burner partly inelevation.

Fig. 2 is an elevation of the outlet or discharge end of the same partlybroken away and in section.

Fig. 3 is a similar view of the inlet end of the burner.

Fig. 4 is a fragmentary elevation partly in `vertical section of amodification of the invention, and showing means for adjusting the doorwhich controls the secondary air.

Fig. 5 is a front elevation of a modification of the gas burner head.

Fig. 6 is a similar view of another modification of said head.

Referring to the drawings, 1 designates a portion of a furnace wallhaving a doorway 3 which is partially lined by the metal wall .frame 9of my burner structure. The inlet end of the frame is flared as shown atill to facilitate duction of secondary air.

The frame, as best shown internally with inwardly the introin Fig. 2, isprovided extending substantially 193s, sei-m Naizsaovz (o1. 15s-11)diametrically opposite ears il connected by bolts I2 to a spider I3having a number of openings extending therethrough for the slidablesupport of a pair of gas tubes I4 and an oil tube l5. The discharge endportions of the gas tubes converge toward one another as shown at i8,and merge into a sectional burner head l1. The latter, as best shown inFig. 2, consists of lhollow sections I3 and II which are provided withapertured ears 2l, secured together by bolts 2l (Fig. l). Each sectionof the head is provided with a number of radiating arms 22, each ofwhich preferably` tapers toward its end and is provided with oppositewalls 23 that converge toward the discharge end of the burner and areprovided with seriesoi" apertures or ports 24. Due to this arrangement,gas issuing from confronting ports of each pair of arms will impinge ina position forwardly of the burner head.

Each of the sections of the head also has a wall 26 extendingdiametrically across the burner head and provided at its medial portionwith a semi-circular part 26. When the sections of the head areassembled, `the parts 2i of the two sections are opposite one anotherand form a hole or tube to accommodate the tube I5 which supplies oil tothe oil burner head 2l; the latter being positioned centrally of the.gas burner head and being adjustable inwardly and outwardly so that thecil burner head 28 can be positioned properly to receive secondary airwhich flows to the same between the spaces intermediate the arms 22.

As best shown in Fig. l, the tubes il and l5 may be locked in anyposition of adjustment by means of screws 23 which extend throughportions of the spider I3 and impinge against the outer surfaces of thetubes.

Instead of making the gas burner head as in Figs. 1 and `2, it may bemade as shown in Fig. 5 wherein each arm 30 of the burner has a singleseries of discharge ports 3l at one side thereof. As the ports are inthe same side of each arm, obviously the gas discharged from the burnerhead has a tendency to fiowin a whirling manner, which is beneficial inthe burning of certain gases.

Instead of using radiating arms for the gas burner head, I may employparallel arms 32 as illustrated in Fig. 6. In that event each section ofthe gas burner head maybe provided with one or more straight arms 32,one only being shown on each section 33 in Fig. 6. y

The inlet end portion of each of the tubes Il terminates in an aspiratorfunnel 3l provided with Aa spider 35 which supports a dome shaped gasinlet element 36 having a discharge port 31. Gas is supplied to each ofthe elements 36 by a pipe 33 on which a disc 33 is adjustably arranged.The funnels admit primary air and the 'amount admitted canof cou. se, beadjusted by the registered discs 89. V

Oil is introduced into the tube l through a nipple 40 and it maybeburned in conjunction with steam which is introduced into the tube Ilthrough a pipe 4|, both of these parts being arranged, of course, at theinlet end of the tube The mouth III which admits the secondaryair (innatural draft) ls.controlled by a register plate 42 that is slidablymounted on the tubes i 4 and I5. and such plate is preferably providedwith a lining plate 4! that has projections 44 which contact with theplate 42 for holding the main portions of these plates in spacedrelation whereby some of the secondary air may pass through such spaceand dissipate the heat. Bolts 45 pass through the projections 44 andthrough the plates and hold the latter in assembled relation.

`In the event that the burner is used with a forced draft, a plate 4l(Fig. 4) receives the gas tubes i4a and the oil tube lia, and is securedat 41 to the outer wall 4B of the furnace, such wall being spaced fromthe inner wall 49 of the furnace whereby the forced air used for draftpurposes will be conveyed into the wall frame 9a.

To provide for regulation of the secondary air, a plate 42a is arrangedbetween the plate 46 and the mouth of the wall frame and is mounted tofacilitate its movement toward and away from said mouth. The registerdoor or plate 42a has projections 44a extending toward the plate 46, andeach projection is secured to the inlet end portion of a supporting rod49a. 'I'he rods are slidably supported by sleeves 50 integral with theplate 46 and each rod is provided at its outer end with a handle 5I.Obviously the operator uses such handles in moving the plate 42a towardor away from the frame 9a.

In operation, one kind of combustible gas may be fed to one of thesections of the gas burner head, and another kind of combustible gas tothe other one, and at such time oil may be supplied by means of the head28 and, of course, during burning of such fuels the head 28 may beaxially adjusted or if desired can be entirely removed from theassembly. Referring now to the advantages of thel invention, thefollowing. .may be noted.

Where large combination gas and oil burners are required, 4my improvedburner meets the requirements of the rening industry as it is a premixtype using both primary and secondary air. As each section of the gasburner has its own aspirator formed partially by the funnel 34, it willaspirate approximately 27% of the air with the gas and mix it before itis passed through the radiating arms of the burner head. Each aspiratorhas one large gas orifice orport 31 which is free from plugging evenwhen used on wet or dirty' gases. Each aspirator has its own air door 39which permits the control of the primary air.

All types of refinery gases may be burned without adjustment of theburner, and of course, the structure is designed for either natural orforced draft and no additional parts are required for an installationusing a wind box, as in that event, the bolts 45, shown inFig. 1, may bereplaced by the rods 48a shown in Fig. 4, and the plate 42, shown inFig. 1, might be apertured to receive the bolts 41 shown in Fig. 4,which bolts are used in securing the supporting plate to the front wallof the furnace.

y oil burner head being axially 'I'he herein described and illustratedembodiments ofthe invention have given satisfactory results and it willbe apparent to those skilled in the art. after an understanding of theinvention, that other changes and modifications may be made withoutdeparting from the spirit of and scope of the invention. and it isintended that all matters contained in the above description or shown inthe drawings shall be interpreted as illustrative and not in a limitingsense.

What I claim and desire to secure by Letters Patent is:

1. In a structure of the character described, a wall frame, a spidersecured to and extending across said frame, an oil tube extendingthrough the medial portion of said spider and provided at its outlet endkwith an oil burner head, gas-conveying tubes extending through thespider at oppositesides of theV oil tube and terminating at their outletend portions in extensions which converge toward said oil burner head. asectional gas burner head surrounding said oil tube and having sectionsconnected to said extensions of the gasconveying tubes, and meansdetachably connecting the sections of the gas burner head together.

2. In a structure of the character described, a wall frame, a spidersecured to and extending across said frame, an oil tube extendingthrough the medial portion of said spider and provided at its outlet endwith an oil burner head, gasconveying tubes extending through the spiderat opposite sides of the oil tube and terminating at their outlet endportions in extensions which converge toward said oil burner head, asectional gas burner head surrounding said oil tube and having sectionsconnected to said extensions of the gas-conveying tubes, and meansdetachably connecting the sections of the gas burner head together, saidoil tube being axially adjustable relatively to said gas burner headwhereby the oil burner head may be moved toward or away from the gasburner head. 4

3. In a structure of the character described, a wall frame, a spidersecured to and extending across said frame, an oilV tube extendingthrough the medial portion of said spider and provided at its outlet endwith an oil burner head, gas-conveying tubes extending through thespider at opposite sides of the oil tube, and a sectional gas burnerhead surrounding said oil burner tube and having sections connected tothe outlet end portions of the gas-conveying tubes, said oil tube andadjustable through the central portion of said gas burner head.

4. In a structure of the character described, a wall frame, a spidersecured to and extending across said frame, an oil tube extendingthrough the medial portion of said spider and provided at its outlet endwith an oil burner head, said tube being axially adjustable in thespider, means for securing the tube to the spider, gas-conveying tubesextending through the spider at opposite sides of the oil tube, eachgas-conveying tube being axially adjustable in the spider, means forsecuring the gas-conveying tubes to the spider, and a sectional gasburner head surrounding said oil tube and having sections connected tothe outlet ends of the gas-conveying tubes, said gas burner head havinga centrally disposed aperture in which the oil tube and oil burner headare axially adjustable.v

` JOHN S. ZINK.

